Basic Judaism spoken here.

8 Tips for Fasting on Yom Kippur

Every year about this time, I update and repost this oldie-but-goodie:

Yom Kippur, the Day of Atonement, begins at sundown on Friday, September 13, 2013. One of the ways Jews observe the day is by fasting.

What exactly does “fast” mean? In common parlance, “fast” can mean just about anything. For observant Jews on Yom Kippur, it means refraining from these five activities for 24 hours:

Eating & Drinking (yes, including water)

Sex

Anointing (using lotions or cosmetics)

Washing

Wearing leather shoes

Do all Jews refrain from all of these things? No. For the majority of American Jews, it means refraining from eating, drinking, and sexual activity. The last three items are less common, but are officially commanded for the day. If you are unsure about what goes on in your congregation, check with your rabbi.

Sick people should NOT fast. If you need food to take prescribed medication, or food for any other medical reason, it is a mitzvah (commandment) to eat as advised by your doctor. Children under 13 do not fast, but might observe the day by eating less or having a day without treats of any kind. Pregnant women do not fast. If you need to eat or drink on Yom Kippur, it is kinder to do it discreetly out of sight of those fasting.

Isn’t it unhealthy to go without food or water for 24 hours?A healthy person should be able to complete the fast. Those who are sick, pregnant, or underage should not fast. It is uncomfortable to fast, but not dangerous unless you have a medical condition that precludes fasting.

Some tips for minimizing discomfort on Yom Kippur:

Eat a good meal before the fast, including protein and fat.

Do not eat very salty things for 24 hours before the fast.

Drink plenty of water before the fast, more than usual. If you are wondering how much water you should drink daily check out the Mayo Clinic recommendations.

If you get caffeine headaches, taper off your caffeine use for the month before Yom Kippur. If it’s too late for that, have a little caffeine at the meal before Yom Kippur if it will not interfere with your sleep.

Stay away from places with food during the fast. One advantage to spending the day at synagogue is that everyone there is in the same boat.

If you get a dry mouth, use this old cantor’s trick: gently bite the inside of your cheek. That will make saliva flow.

When the fast ends, hydrate first. Then get something light to eat. “Break-the-fast” should not be “break-the-belt.”

Decide ahead of time why you are fasting, and when you feel uncomfortable, remind yourself about it. Because it is commanded? In solidarity with other Jews? As a way of expressing sorrow for misdeeds? Because there are people for whom every day is a hungry day? All are good reasons to participate.

Two things you can wish a Jew who is fasting:

“Tzom KaSHER”– “A kosher fast” – wishing them a fast with no mistakes

“Tzom Kal” – “An easy fast” – wishing them an easy time of it. (Occasionally someone may tell you that it shouldn’t be an easy fast. However, the commandment is to fast, not to suffer. If they feel they get benefit out of the suffering, that’s fine for them. You did not say anything wrong. Next year wish that person a tzom kasher.)